During this year's National Donut Day celebration, The Salvation Army marks the 100th anniversary of World Wa I. The charity created the "holiday" in 1938 to commemorate female volunteers who provided donuts and coffee to soldiers on the front lines in 1917 in France during World War I. These “Donut Lassies, ” as they became known, would fry doughnuts in soldiers' helmets and serve the confection to troops to boost morale.

If you'd like to make your own doughnuts at home, the Salvation Army offers its classic and modern recipes, along with a link to donate to the nonprofit.